|
| 1 | +/* |
| 2 | + Simple DirectMedia Layer |
| 3 | + Copyright (C) 1997-2021 Sam Lantinga <[email protected]> |
| 4 | +
|
| 5 | + This software is provided 'as-is', without any express or implied |
| 6 | + warranty. In no event will the authors be held liable for any damages |
| 7 | + arising from the use of this software. |
| 8 | +
|
| 9 | + Permission is granted to anyone to use this software for any purpose, |
| 10 | + including commercial applications, and to alter it and redistribute it |
| 11 | + freely, subject to the following restrictions: |
| 12 | +
|
| 13 | + 1. The origin of this software must not be misrepresented; you must not |
| 14 | + claim that you wrote the original software. If you use this software |
| 15 | + in a product, an acknowledgment in the product documentation would be |
| 16 | + appreciated but is not required. |
| 17 | + 2. Altered source versions must be plainly marked as such, and must not be |
| 18 | + misrepresented as being the original software. |
| 19 | + 3. This notice may not be removed or altered from any source distribution. |
| 20 | +*/ |
| 21 | + |
| 22 | +#include "../../SDL_internal.h" |
| 23 | + |
| 24 | +#if SDL_VIDEO_DRIVER_WAYLAND |
| 25 | + |
| 26 | +#include "SDL.h" |
| 27 | +#include <stdlib.h> /* popen/pclose/fgets */ |
| 28 | + |
| 29 | +int |
| 30 | +Wayland_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid) |
| 31 | +{ |
| 32 | + #define ZENITY_CONST(name, str) \ |
| 33 | + const char *name = str; \ |
| 34 | + const size_t name##_len = SDL_strlen(name); |
| 35 | + ZENITY_CONST(zenity, "zenity --question --switch --icon-name=dialog-") |
| 36 | + ZENITY_CONST(title, "--title=") |
| 37 | + ZENITY_CONST(message, "--text=") |
| 38 | + ZENITY_CONST(extrabutton, "--extra-button=") |
| 39 | + ZENITY_CONST(icon_info, "information") |
| 40 | + ZENITY_CONST(icon_warn, "warning") |
| 41 | + ZENITY_CONST(icon_error, "error") |
| 42 | + #undef ZENITY_CONST |
| 43 | + |
| 44 | + char *command, *output; |
| 45 | + size_t command_len, output_len; |
| 46 | + const char *icon; |
| 47 | + char *tmp; |
| 48 | + FILE *process; |
| 49 | + int i; |
| 50 | + |
| 51 | + /* Start by calculating the lengths of the strings. These commands can get |
| 52 | + * pretty long, so we need to dynamically allocate this. |
| 53 | + */ |
| 54 | + command_len = zenity_len; |
| 55 | + output_len = 0; |
| 56 | + switch (messageboxdata->flags) |
| 57 | + { |
| 58 | + case SDL_MESSAGEBOX_ERROR: |
| 59 | + icon = icon_error; |
| 60 | + command_len += icon_error_len; |
| 61 | + break; |
| 62 | + case SDL_MESSAGEBOX_WARNING: |
| 63 | + icon = icon_warn; |
| 64 | + command_len += icon_warn_len; |
| 65 | + break; |
| 66 | + case SDL_MESSAGEBOX_INFORMATION: |
| 67 | + default: |
| 68 | + icon = icon_info; |
| 69 | + command_len += icon_info_len; |
| 70 | + break; |
| 71 | + } |
| 72 | + #define ADD_ARGUMENT(arg, value) \ |
| 73 | + command_len += arg + 3; /* Two " and a space */ \ |
| 74 | + if (messageboxdata->value != NULL) { \ |
| 75 | + command_len += SDL_strlen(messageboxdata->value); \ |
| 76 | + } |
| 77 | + ADD_ARGUMENT(title_len, title) |
| 78 | + ADD_ARGUMENT(message_len, message) |
| 79 | + for (i = 0; i < messageboxdata->numbuttons; i += 1) { |
| 80 | + ADD_ARGUMENT(extrabutton_len, buttons[i].text) |
| 81 | + } |
| 82 | + #undef ADD_ARGUMENT |
| 83 | + |
| 84 | + /* Don't forget null terminators! */ |
| 85 | + command_len += 1; |
| 86 | + output_len += 1; |
| 87 | + |
| 88 | + /* Now that we know the length of the command, allocate! */ |
| 89 | + command = (char*) SDL_malloc(command_len + output_len); |
| 90 | + if (command == NULL) { |
| 91 | + return SDL_OutOfMemory(); |
| 92 | + } |
| 93 | + output = command + command_len; |
| 94 | + command[0] = '\0'; |
| 95 | + output[0] = '\0'; |
| 96 | + |
| 97 | + /* Now we can build the command... */ |
| 98 | + SDL_strlcpy(command, zenity, command_len); |
| 99 | + SDL_strlcat(command, icon, command_len); |
| 100 | + #define ADD_ARGUMENT(arg, value) \ |
| 101 | + SDL_strlcat(command, " ", command_len); \ |
| 102 | + SDL_strlcat(command, arg, command_len); \ |
| 103 | + SDL_strlcat(command, "\"", command_len); \ |
| 104 | + if (value != NULL) { \ |
| 105 | + SDL_strlcat(command, value, command_len); \ |
| 106 | + } \ |
| 107 | + SDL_strlcat(command, "\"", command_len) |
| 108 | + ADD_ARGUMENT(title, messageboxdata->title); |
| 109 | + ADD_ARGUMENT(message, messageboxdata->message); |
| 110 | + for (i = 0; i < messageboxdata->numbuttons; i += 1) { |
| 111 | + ADD_ARGUMENT(extrabutton, messageboxdata->buttons[i].text); |
| 112 | + } |
| 113 | + #undef ADD_ARGUMENT |
| 114 | + |
| 115 | + /* ... then run it, finally. */ |
| 116 | + process = popen(command, "r"); |
| 117 | + if (process == NULL) { |
| 118 | + SDL_free(command); |
| 119 | + return SDL_SetError("zenity failed to run"); |
| 120 | + } |
| 121 | + |
| 122 | + /* At this point, if no button ID is needed, we can just bail as soon as the |
| 123 | + * process has completed. |
| 124 | + */ |
| 125 | + if (buttonid == NULL) { |
| 126 | + pclose(process); |
| 127 | + goto end; |
| 128 | + } |
| 129 | + *buttonid = -1; |
| 130 | + |
| 131 | + /* Read the result from stdout */ |
| 132 | + tmp = fgets(output, output_len, process); |
| 133 | + pclose(process); |
| 134 | + if ((tmp == NULL) || (*tmp == '\0') || (*tmp == '\n')) { |
| 135 | + goto end; /* User simply closed the dialog */ |
| 136 | + } |
| 137 | + |
| 138 | + /* It likes to add a newline... */ |
| 139 | + tmp = SDL_strrchr(output, '\n'); |
| 140 | + if (tmp != NULL) { |
| 141 | + *tmp = '\0'; |
| 142 | + } |
| 143 | + |
| 144 | + /* Check which button got pressed */ |
| 145 | + for (i = 0; i < messageboxdata->numbuttons; i += 1) { |
| 146 | + if (SDL_strcmp(output, messageboxdata->buttons[i].text) == 0) { |
| 147 | + *buttonid = i; |
| 148 | + break; |
| 149 | + } |
| 150 | + } |
| 151 | + |
| 152 | +end: |
| 153 | + SDL_free(command); |
| 154 | + return 0; |
| 155 | +} |
| 156 | + |
| 157 | +#endif /* SDL_VIDEO_DRIVER_WAYLAND */ |
| 158 | + |
| 159 | +/* vi: set ts=4 sw=4 expandtab: */ |
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